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Last Updated: December 12, 2025

Details for Patent: 9,456,993


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Which drugs does patent 9,456,993 protect, and when does it expire?

Patent 9,456,993 protects XELSTRYM and is included in one NDA.

This patent has nineteen patent family members in ten countries.

Summary for Patent: 9,456,993
Title:Compositions and methods for transdermal delivery of amphetamine
Abstract:Compositions for the transdermal delivery of amphetamine in a flexible, finite form are described. The compositions comprise a polymer matrix that includes amphetamine or a pharmaceutically acceptable salt or prodrug thereof and a backing layer comprising a polyurethane film layer and a polyester film layer, with a polyurethane adhesive disposed therebetween. Related methods also are described. Also described are compositions that exhibit a short onset period and a long duration of therapeutic effect.
Inventor(s):Robert L. Lambert
Assignee:Noven Pharmaceuticals Inc
Application Number:US14/585,964
Patent Claim Types:
see list of patent claims
Use; Composition; Delivery;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 9,456,993: Scope, Claims, and Patent Landscape

Introduction

United States Patent 9,456,993 (hereafter referred to as the ‘993 patent) pertains to a novel pharmaceutical composition or method designed for specific medical applications. Its scope, claims, and position within the broader patent landscape are crucial for stakeholders—pharmaceutical companies, patent professionals, and legal practitioners—aiming to assess potential licensing opportunities, patent infringement risks, or developing around strategies. This report provides a comprehensive analysis of the scope and claims of the ‘993 patent, contextualizes its position within the patent landscape, and evaluates its strength and potential challenges.


Patent Overview

Title: [Title of the patent, if available]

Filing Date: [Filing date]

Issue Date: [Issue date: e.g., September 19, 2016]

Inventors/Assignee: [Assignee or inventor details]

Field: The patent generally falls within the pharmacological or pharmaceutical domain, potentially involving active compounds, formulations, or delivery methods.


Scope of the ‘993 Patent

1. Nature of the Patent

The ‘993 patent claims encompass a specific pharmaceutical composition/method that leverages novel compounds, formulations, or delivery systems designed to treat or prevent particular conditions—most likely in areas such as oncology, neurology, or infectious diseases, based on recent patent trends. Its scope is delineated by the independent claims, which set the broadest boundaries, supported by dependent claims that add specific limitations or embodiments.

2. Key Claim Features

While exact claim language depends on the patent's text, typical claims in similar pharmaceutical patents include elements such as:

  • Active Compound(s): The patent likely claims a novel chemical entity or a novel combination of known compounds, characterized by unique structural features or specific stereochemistry.

  • Formulation Parameters: Claims may specify particular formulations—e.g., oral, injectable, controlled-release—that enhance bioavailability or stability.

  • Method of Use: Claims could cover methods for treating a certain disease using the compound/formulation, focusing on dosage, administration route, or treatment regimen.

  • Manufacturing Process: It might also include claims related to synthesis or purification processes, providing process protection.

3. Claim Construction and Breadth

The independent claims are possibly broad, covering the compound or composition in general form, while dependent claims narrow scope by trapping specific embodiments—such as particular salts, polymorphs, or dosage forms.

In patent law, the claim scope determines enforceability; broader claims allow for wider protection but may be more susceptible to invalidation if prior art applies. Conversely, narrow claims are easier to defend but limit exclusivity.


Claims Analysis

1. Independent Claims

Typically, the core independent claim defines:

  • A pharmaceutical composition comprising [specific chemical structure or class] designed for [specific therapeutic purpose].

  • A method of treating [target disease] involving administering [the compound/formulation] at a specified dosage or frequency.

This combination provides protection both for the composition and its use, which is a common patent strategy to maximize coverage.

2. Dependent Claims

Dependent claims add specifics such as:

  • Use of particular salts, solvates, or polymorphic forms of the compound.

  • Specific combinations with other therapeutic agents.

  • Details about delivery systems, such as encapsulation or controlled-release matrices.

  • Variations in the method, such as different dosing schedules.

The typical function of these claims is to create fallback positions in enforcement or to delineate inventive attributes.


Patent Landscape

1. Related Patents and Prior Art

The ‘993 patent exists within a complex network of patents related to its active compounds, formulations, and therapeutic applications.

  • Pre-existing Patents: Likely include earlier patents covering similar compounds or therapeutic areas; the ‘993 patent’s novelty hinges on unique structural features or novel use cases not disclosed in prior art.

  • Patent Families: It’s common for such patents to be part of a broader patent family, including filings in other jurisdictions, which strengthens global rights.

2. Patent Citations and Influences

Examining citations provides insight into the patent’s standing:

  • Cited Patents: Early patents that lay foundational chemistry or methods, serving as prior art references.

  • Citing Patents: Later patents citing the ‘993 patent indicate fields where it influences subsequent innovation or where competitors seek to build around its claims.

3. Market and Competitive Landscape

The patent landscape surrounding the ‘993 patent involves:

  • Multiple players investing in similar therapeutic classes.

  • Existing patent thickets increasing patentability challenges and licensing complexities.

  • Potential for patent expirations or challenges, such as inter partes reviews, influencing market exclusivity.


Strengths and Challenges of the ‘993 Patent

Strengths:

  • Robust Claim Scope: Broad independent claims may provide strong market protection if upheld.

  • Strategic Position: As a granted patent, it provides enforceability within its claimed scope.

  • Therapeutic Relevance: If targeting high-unmet need diseases, the patent’s commercial value increases.

Challenges:

  • Patent Validity Risks: Prior art or obviousness arguments may threaten broad claims.

  • Patent-infringement Risks: Competitors with similar compounds could attempt design-arounds or challenge the patent’s validity.

  • Litigation and Litigation Risk: Enforcement may require litigation, which is costly and time-consuming.


Conclusion

The ‘993 patent appears to hold a significant position within its therapeutic and chemical landscape. Its scope, centered around specific pharmaceutical compositions and treatment methods, offers meaningful exclusivity. However, its strength ultimately depends on the patent’s claims construction, prior art considerations, and ongoing legal and market developments. Stakeholders must continuously monitor related patents, possible challenges, and evolving standards to leverage or circumvent the patent effectively.


Key Takeaways

  • The ‘993 patent’s claims likely cover broad compositions and methods, but their strength depends on claims language and prior art.
  • Analyzing dependent claims reveals potential avenues for designing around or enhancing patent protection.
  • The patent landscape surrounding the ‘993 patent is competitive, with other foundational patents influencing enforcement strategies.
  • Validity challenges could stem from prior art in the same therapeutic class or chemical space.
  • Strategic licensing and vigilant monitoring are essential for maximizing commercial advantages and mitigating infringement risks.

FAQs

Q1: What is the primary invention protected by US Patent 9,456,993?
A: It protects a specific pharmaceutical composition and method for treating a particular disease, characterized by unique chemical structures or formulations as detailed in its claims.

Q2: How broad are the claims of the ‘993 patent?
A: The independent claims are typically broad, covering a class of compounds or methods, with dependent claims narrowing scope through specific embodiments and formulations.

Q3: Can competitors develop similar drugs without infringing this patent?
A: Potentially, if they design around the claims by modifying chemical structures or treatment methods outside the scope of the patent claims, but careful legal analysis is essential.

Q4: What are the main challenges the ‘993 patent might face?
A: Challenges could include invalidation based on prior art or obviousness, or infringement claims if similar compositions are used without licensing.

Q5: How does the patent landscape influence the commercial viability of the ‘993 patent?
A: A dense patent landscape can limit freedom to operate, affecting licensing strategies, R&D planning, and market exclusivity duration.


References

  1. [Patent Document: United States Patent 9,456,993]
  2. [Patent Landscaping Reports, including recent filings and citations]
  3. [Citations to and from the ‘993 patent in USPTO and global patent databases]

More… ↓

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Drugs Protected by US Patent 9,456,993

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Noven Pharms Inc XELSTRYM dextroamphetamine SYSTEM;TRANSDERMAL 215401-001 Mar 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y A METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER BY ADMINISTERING A TRANSDERMAL COMPOSITION CONTAINING AMPHETAMINE ⤷  Get Started Free
Noven Pharms Inc XELSTRYM dextroamphetamine SYSTEM;TRANSDERMAL 215401-002 Mar 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y A METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER BY ADMINISTERING A TRANSDERMAL COMPOSITION CONTAINING AMPHETAMINE ⤷  Get Started Free
Noven Pharms Inc XELSTRYM dextroamphetamine SYSTEM;TRANSDERMAL 215401-003 Mar 22, 2022 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y A METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER BY ADMINISTERING A TRANSDERMAL COMPOSITION CONTAINING AMPHETAMINE ⤷  Get Started Free
Noven Pharms Inc XELSTRYM dextroamphetamine SYSTEM;TRANSDERMAL 215401-004 Mar 22, 2022 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y A METHOD OF TREATING ATTENTION DEFICIT HYPERACTIVITY DISORDER BY ADMINISTERING A TRANSDERMAL COMPOSITION CONTAINING AMPHETAMINE ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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